Malicious PDF — malware analysis report

Static analysis result for SHA-256 e017c30f8e4535c3…

MALICIOUS

PDF

44.1 KB Created: 2020-08-31 12:50:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a99a0de085499f5fe92ffb011ae3b0e9 SHA-1: a74aa4c0ae4ecbd863f61ead6449fa9cfb07998e SHA-256: e017c30f8e4535c397d87507d792868762c7f2cf9f6c6981d26082fe1f006277
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a prominent link disguised as a download button, which is a common lure for malicious content. This link directs to a redirector URL, 'https://ttraff.com/wix?keyword=get+out+mp4+movie+download', which is flagged as malicious. The document also contains a large number of embedded links, many pointing to 'static.usrfiles.com', suggesting a link farm or SEO poisoning tactic to attract victims. No scripts were extracted, but the presence of a malicious redirector and a clear social engineering lure indicates a high likelihood of a drive-by download or phishing attempt.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/wix?keyword=get+out+mp4+movie+download
    • https://static.usrfiles.com/ugd/469aea_bb51ca95ed484a4490df53f5f7e9bf81.pdf
    • https://static.usrfiles.com/ugd/0511f5_aa6d1d0ce06544f1b784a53630a679cc.pdf
    • https://static.usrfiles.com/ugd/b8c837_4f0ef534d9c14e938ebf0f527d2bec38.pdf
    • https://cdn.shopify.com/s/files/1/0430/9070/6589/files/mpdf_page-_break-_inside_avoid_not_working.pdf
    • https://cdn.shopify.com/s/files/1/0450/4797/1990/files/imperative_programming_techmax.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/sixativezodipozenun.pdf
    • https://static.usrfiles.com/ugd/b8c837_abdea59f2c09443eb3448a52612afc84.pdf
    • https://static.usrfiles.com/ugd/850f07_57ce78ae02214f3a9e00476d128944ef.pdf
    • https://static.usrfiles.com/ugd/b8c837_63d90ac156de4c11bdc0aa0bbbf60d20.pdf
    • https://static.usrfiles.com/ugd/44b221_447df7b8c4b448f78b5280d74fc012f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_b163dd7a12994e479ffc31d4ffef78a0.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/34324816868.pdf
    • https://cdn.shopify.com/s/files/1/0432/6644/1376/files/62763570119.pdf
    • https://cdn.shopify.com/s/files/1/0431/8802/7556/files/gb_instruments_gdt-_11.pdf
    • https://cdn.shopify.com/s/files/1/0437/5789/5841/files/duxufajakuwekuwilote.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ec5.bin
51e676ac22f5eb3944126097ac2fde2cd26b42e3a5fd6050685f71626b85ff8a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC5 5104 bytes
font_01_sfnt_off00008031.bin
51fdc216bbab3a8233c440b9ba7c153cd594eda5ae0b0f30c96a5b2709beb13d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8031 10388 bytes